Kate Mara at House of Cards Premiere

Kate and Rooney Face Off in a Style Battle (of Sisterly Proportions)

When Kate Mara stepped out at the Lincoln Center last night to promote her new series, House of Cards, she had some support from younger sister and fellow actress Rooney Mara. It was a red-carpet family reunion that provided two very different takes on event dressing. Kate showed off her feminine fashion inclination in a metallic lace Dolce & Gabbana confection, complete with platform heels and a framed clutch, while Rooney served up a more pared-down aesthetic in Band of Outsiders suiting, then finished off her menswear vibe with lace-up boots. We love that both sisters each offer a unique style perspective, so much so that it's hard to picture these sisters raiding each others' closets growing up — with Kate channeling a more ladylike, trendier feel and Rooney staying true to her edgier eventwear. Now, we're turning it over to you. In this sartorial battle, which sister's style gets your vote?